Home / 988,340.28-1,482,630.38-278,368.32

Finding the Fourth Proportional to 988,340.28, 1,482,630.38 and 278,368.32

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Solution

The fourth proportional to 988,340.28, 1,482,630.38 and 278,368.32 is: 417,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,340.28 : 1,482,630.38 = 278,368.32 : x
  2. Step 2: Convert to fraction form
    988,340.28/1,482,630.38 = 278,368.32/x
  3. Step 3: Cross multiply
    988,340.28x = 1,482,630.38 × 278,368.32
  4. Step 4: Simplify right side
    988,340.28x = 412,717,328,061.56
  5. Step 5: Solve for x
    x = 412,717,328,061.56/988,340.28
  6. Step 6: Final answer
    x = 417,586.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.